package net.minecraft.src;

import net.minecraft.src.AxisAlignedBB;
import net.minecraft.src.Entity;
import net.minecraft.src.EntityFireball;
import net.minecraft.src.EntityFlying;
import net.minecraft.src.IMob;
import net.minecraft.src.Item;
import net.minecraft.src.MathHelper;
import net.minecraft.src.Vec3D;
import net.minecraft.src.World;

public class EntityGhast extends EntityFlying implements IMob {

    public int courseChangeCooldown = 0;
    public double waypointX;
    public double waypointY;
    public double waypointZ;
    private Entity targetedEntity = null;
    private int aggroCooldown = 0;
    public int prevAttackCounter = 0;
    public int attackCounter = 0;


    public EntityGhast(World var1) {
        super(var1);
        this.texture = "/mob/ghast.png";
        this.setSize(4.0F, 4.0F);
        this.isImmuneToFire = true;
    }

    protected void entityInit() {
        super.entityInit();
        this.dataWatcher.addObject(16, Byte.valueOf((byte)0));
    }

    public void onUpdate() {
        super.onUpdate();
        byte var1 = this.dataWatcher.getWatchableObjectByte(16);
        this.texture = var1 == 1?"/mob/ghast_fire.png":"/mob/ghast.png";
    }

    protected void updatePlayerActionState() {
        if(!this.worldObj.singleplayerWorld && this.worldObj.difficultySetting == 0) {
            this.setEntityDead();
        }

        this.func_27013_Q();
        this.prevAttackCounter = this.attackCounter;
        double var1 = this.waypointX - this.posX;
        double var3 = this.waypointY - this.posY;
        double var5 = this.waypointZ - this.posZ;
        double var7 = (double)MathHelper.sqrt_double(var1 * var1 + var3 * var3 + var5 * var5);

        if(var7 < 1.0D || var7 > 60.0D) {
            this.waypointX = this.posX + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F);
            this.waypointY = this.posY + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F);
            this.waypointZ = this.posZ + (double)((this.rand.nextFloat() * 2.0F - 1.0F) * 16.0F);
        }

        if(this.courseChangeCooldown-- <= 0) {
            this.courseChangeCooldown += this.rand.nextInt(5) + 2;

            if(this.isCourseTraversable(this.waypointX, this.waypointY, this.waypointZ, var7)) {
                this.motionX += var1 / var7 * 0.1D;
                this.motionY += var3 / var7 * 0.1D;
                this.motionZ += var5 / var7 * 0.1D;
            } else {
                this.waypointX = this.posX;
                this.waypointY = this.posY;
                this.waypointZ = this.posZ;
            }
        }

        if(this.targetedEntity != null && this.targetedEntity.isDead) {
            this.targetedEntity = null;
        }

        if(this.targetedEntity == null || this.aggroCooldown-- <= 0) {
            this.targetedEntity = this.worldObj.getClosestPlayerToEntity(this, 100.0D);

            if(this.targetedEntity != null) {
                this.aggroCooldown = 20;
            }
        }

        double var9 = 64.0D;

        if(this.targetedEntity != null && this.targetedEntity.getDistanceSqToEntity(this) < var9 * var9) {
            double var11 = this.targetedEntity.posX - this.posX;
            double var13 = this.targetedEntity.boundingBox.minY + (double)(this.targetedEntity.height / 2.0F) - (this.posY + (double)(this.height / 2.0F));
            double var15 = this.targetedEntity.posZ - this.posZ;
            this.renderYawOffset = this.rotationYaw = -((float)Math.atan2(var11, var15)) * 180.0F / 3.1415927F;

            if(this.canEntityBeSeen(this.targetedEntity)) {
                if(this.attackCounter == 10) {
                    this.worldObj.playSoundAtEntity(this, "mob.ghast.charge", this.getSoundVolume(), (this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F + 1.0F);
                }

                ++this.attackCounter;

                if(this.attackCounter == 20) {
                    this.worldObj.playSoundAtEntity(this, "mob.ghast.fireball", this.getSoundVolume(), (this.rand.nextFloat() - this.rand.nextFloat()) * 0.2F + 1.0F);
                    EntityFireball var17 = new EntityFireball(this.worldObj, this, var11, var13, var15);
                    double var18 = 4.0D;
                    Vec3D var20 = this.getLook(1.0F);
                    var17.posX = this.posX + var20.xCoord * var18;
                    var17.posY = this.posY + (double)(this.height / 2.0F) + 0.5D;
                    var17.posZ = this.posZ + var20.zCoord * var18;
                    this.worldObj.entityJoinedWorld(var17);
                    this.attackCounter = -40;
                }
            } else if(this.attackCounter > 0) {
                --this.attackCounter;
            }
        } else {
            this.renderYawOffset = this.rotationYaw = -((float)Math.atan2(this.motionX, this.motionZ)) * 180.0F / 3.1415927F;

            if(this.attackCounter > 0) {
                --this.attackCounter;
            }
        }

        if(!this.worldObj.singleplayerWorld) {
            byte var21 = this.dataWatcher.getWatchableObjectByte(16);
            byte var12 = (byte)(this.attackCounter > 10?1:0);

            if(var21 != var12) {
                this.dataWatcher.updateObject(16, Byte.valueOf(var12));
            }
        }
    }

    private boolean isCourseTraversable(double var1, double var3, double var5, double var7) {
        double var9 = (this.waypointX - this.posX) / var7;
        double var11 = (this.waypointY - this.posY) / var7;
        double var13 = (this.waypointZ - this.posZ) / var7;
        AxisAlignedBB var15 = this.boundingBox.copy();

        for(int var16 = 1; (double)var16 < var7; ++var16) {
            var15.offset(var9, var11, var13);

            if(this.worldObj.getCollidingBoundingBoxes(this, var15).size() > 0) {
                return false;
            }
        }

        return true;
    }

    protected String getLivingSound() {
        return "mob.ghast.moan";
    }

    protected String getHurtSound() {
        return "mob.ghast.scream";
    }

    protected String getDeathSound() {
        return "mob.ghast.death";
    }

    protected int getDropItemId() {
        return Item.gunpowder.shiftedIndex;
    }

    protected float getSoundVolume() {
        return 10.0F;
    }

    public boolean getCanSpawnHere() {
        return this.rand.nextInt(20) == 0 && super.getCanSpawnHere() && this.worldObj.difficultySetting > 0;
    }

    public int getMaxSpawnedInChunk() {
        return 1;
    }
}
